From Seattle to the District, protesters are gathering in cities throughout the country Saturday to call on President Trump to release his personal tax returns. The protests fall on the country’s traditionally recognized deadline to file taxes, April 15.

In all, more than 100 marches are expected to occur throughout the day. The main march unfolded in the nation’s capital, where protesters gathered for a rally in front of the Capitol and then planned to march near the Lincoln Memorial in the afternoon. In South Florida, activists say they will march to Trump’s Mar-a-Lago resort, where the president is staying this weekend.

Presidents are not required to release their tax returns but have done so voluntarily dating to the 1970s.

In Washington, participants at the march portrayed the president as a greedy politician who refuses to be open about his financial dealings.